Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	12210900000
1995-01-01	13659700000
1996-01-01	14799700000
1997-01-01	15732900000
1998-01-01	15545700000
1999-01-01	16362800000
2000-01-01	17755000000
2001-01-01	18362600000
2002-01-01	19366700000
2003-01-01	21663600000
2004-01-01	25209900000
2005-01-01	29356800000
2006-01-01	31314600000
2007-01-01	37203000000
2008-01-01	41410300000
2009-01-01	34471300000
2010-01-01	40708600000
2011-01-01	39722900000
2012-01-01	38187100000
2013-01-01	40153200000